Fastening for knockdown furniture.



PATENTED JUNE 27, 1905.

F. B. WILLIAMS.

FASTENING FOR KNOCKDOWN FURNITURE.

APPLICATION FILED SEPT. 21, 1904 v j q UNITED STATES Patented June 27,1905.

FITZALLAN B. \VILLIAMS, OF CHICAGO, ILLINOIS.

FASTENING FOR KNOCKDOWN FURNITURE.

SPECIFICATION forming part of Letters Patent No. 793,255, dated June 27,1905.

Application filed September 21,1904- Serial No. 225,316.

To all whom, it may concern.-

Be it known that I, FITZALLAN B. \VILLIAMS, of Chicago, in the State ofIllinois, have invented certain new and useful Improvements inFastenings for Knockdown Furniture, of which the following is aspecification.

The invention relates to means for attaching or securing together theseparable parts of articles of knockdown furniture, and the improvementcomprises companion parts having meeting surfaces with attachingdevices, and bearing-surfaces adapted to fit upon and be secured to theparts of such articles.

The object of the improvement is to provide a device of this characterwhich will be conveniently and generally applicable for connectingseparable parts of tables, desks, folding bedsteads, partitions, boxes,cases, or any parts ordinarily connected with screws, nails,glue-blocks, corner-irons, mortises, and the like, which are assembledto form the complete article and which it may be desirable to separateoccasionally for shipment, storage, or other purposes. I have attainedthis object by the means illustrated in the accompanying drawings, inwhich Figure 1 is an elevation showing two sepa rable parts of such anarticle in fragment connected by a fastening device containing myinvention and shownin edge view. Fig. 2 is a view of the same parts, butshows one member of the article and of the fastening device in plan viewas seen when looking at Fig. 1 in an upward direction. Fig. 3 is asection taken on the line 3 3 of Fig. 2. Fig. at is a detail showing anend or edge view of the detached male part of the device. Fig. 5 is adetail showing a bottom view of the detached female part. Fig. 6 is adetail showing a bottom view of a detached locking-piece, and Fig. 7 isa detail showing an end view of the said locking-piece.

In the drawings the numerals 1 and 2 designate connected parts of thearticle of furniture. The male part 3 is secured by screws at to thepart 2 with its bearing-surface upon the same, and the female part 5 issecured with its bearing-surface resting upon the part 1, as shown inFigs. 1 and 2. Flush with the edge 6 of part 3 is a projection 7, whichhas a flat side extended in the same plane with said edge. From saidflat side a pin 8 extends, said flat side and edge 6 forming the meetingsurface of said part 3 and being the head of the pin. Said pin has anotch or groove 9, Fig. 3, in the face side thereof near the end.

The hearing-surface of part 5 is seen in Fig. 5. It has a flat portionalong its rear part adapted to lit snugly upon the part 1 and a raisedor recessed portion 10 at center projecting in front. It has aperforation 11 adapted to receive the pin 8 of part 3, the perforationat the rear coming near the rear edge, or in some instances cuttingthrough the edge, as seen in the illustration. The top side of part 5around said perforation is made flat to [it against the edge and flatside of projection '7 and constitutes the meeting surface of said part5. A rotatable locking-piece 12 is adapted to fit under the raised orrecessed edge 10 and be secured there by a screw 13, which passesthrough perforations l-I and 15 and enters the part 1. Saidlocking-piece has an inclined or thread-like flange or cam 16, whichtraverses the perforation 11 and is provided with a recess 17.Preferably a perforated lever or handle 18 is provided for rotating saidlocking-piece and securing it in any desired position by means of a nail01' screw set through its perforation into the part 1. The outer end ofthe lever being tapped with a hammer may be forced round until the camwill jam up so tight as to stay in place without any nail or screw, andthe nail or screw may be applied against the side of a lever notperforated to hold it from turning the same as if in the perforation.WVhen the recess 17 is turned forward to coincide with the perforation11, the pin 8 can be entered into said perforation, so that the meetingsurface of part 3 will impinge upon the meeting surface of part 5, andby now turning said lockingpiece back the thread-like flange or cam willenter the groove 9 of said pin and bear increasingly upon thebearing-point 19, Fig. 3, at the inner side of said groove as it isturned back, tending to draw said pin farther into said perforation andcausing the meeting surface of part 3 to bear so hard upon the meetingsurface of part 5 as to bind said parts rigidly together and to hold theattached parts 1 and 2 as firmly together as if dovetailed or securedwith screws or nails, corner-irons, or glue-blocks.

The invention in this case consists, generally, of a pair of companionparts, each provided with screwholes, a bearing-surface adapted to fitupon one of the parts of the article to be connected, and a meetingsurface adapted to fit upon the opposite companion part for holding thepair firmly in the desired relative position to one another, and a parthaving a revoluble cam, one of said companion parts having a perforationor recess traversed by the revoluble cam, which is adapted to be set ina fixed position, and the other of said parts having a pin or extensionadapted to enter said perforation and provided with a.

lug serving as a bearing-surface for the cam to draw the pin into theperforation and hold it there for binding said companion parts firmlytogether upon their meeting surfaces, substantially as described.

What is claimed is 1. A device of the class described comprising a pairof companion parts and a part. having a revoluble cam, each of thecompanion parts having a bearing-surface and a meeting surface andscrew-holes, one of said parts having a perforation and the other anattaching-pin adapted to enter the perforation and provided with a lug,and the cam being adapted to traverse said perforation and bear upon thelug, as specified.

2. A device of the class described comprising a plate 3 provided withscrew-holes, a meetingsurface 6, 7, and a grooved pin 8 extended fromsaid meeting surface, a plate 5 provided with screw-holes, a meetingsurface, a recess 10 and perforation 11, and a, rotatable locking-piece12 provided with a recessed, threadlike cam 16 and lever 18, asspecified.

FITZ'ALLAN B. WILLIAMS.

Witnesses:

ANNIE M. ADAMS, R. J. JAcKER.

